You will be surprised to know that computer can perform millions 1,000,000 of instructions and even more per second. At present there is no clear definition available to categorize computer applications. Types of computer languages with their advantages and. This is and electronic device which is used to manage the power supply of computer. Personal computers computer system dedicated to a single user. There are variety of monitor available in the market such as, crt monitor, lcd monitor, touch screen monitor, tft monitor etc.
Notes on characteristics of computer extra references. Graduate students actively pursuing research under the guidance of an academic supervisor play an active part in a variety of academic societies, both international and domestic, including the ieee, acm, ipsj, and ieice. Some of the applications softwares are browsers, email clients, word processors, spreadsheet, database programs and many more. Essential features for your laptop or desktop computer. Data is stored on magnetic tape in the form of magnetic spots. It is responsible for transferring files from server to a computer and vice versa. They are classified according to purpose, data handling and functionality. Now, computers use wifi and broadband connections to blaze their way through multimedia content from live streaming news to movies to multiplayer games and much more. The personal computer pc defines a computer designed for general use by a single person. List common types of computers, and discuss their main features. An analog computer spelt analogue in british english is a form of computer that uses continuous physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved.
Calculators are computers that carry out computers most basic tasks calculations. It is commonly used by web servers, it enables user to upload, edit or delete files from websites using ftp clients. Students active in the research of information systems. On the basis of size the computer can be classified into. Sometimes we forget that the smartphone is just a palmsized version of our desktop pc. Server a computer that has been optimized to provide services to. With a lot happening on the web, it becomes an utmost need to secure the content from loss and interception as there hovers a constant vision of. It is slower device than magnetic disk or optical disk. These computers deal with actual numbers and the answer to the problem is obtained by counting. A computer can perform task very quickly and accurately. Its impossible to imagine life without a computer nowadays. Computer literacy part 3 computer types and functions. It responds to a specific set of instructions in a welldefined manner.
The monitor, keyboard, and mouse all plug into it using cables or in some cases, using a wireless technology. Motherboard types and features 87 3 some sockets can handle a processor using a. Types of computer on the basic of size with there features. A computer network can be categorized by their size. We cannot do any thing useful with the computer hardware on its own. General purpose computers are designed to perform a range of tasks.
Ftp server ensures the security and integrity of data during the transfer. At the most basic level, a computer is a device consisting of three pieces. Different kinds of languages have been developed to perform different types of work on the computer. The higher the speed of the processor, the faster the computer will be able to handle multiple programs and activities. These computers work according to a set of instructions called programme. According to functionality, type of computers are classified as. The computers worked of system some types of instruction are. Local area network lan metropolitan area network man wide area network wan personal area network pan a lan is a network that is used for communicating among computer devices, usually within an office building or. Pdf documents can be categorized in three different types, depending on the way the file originated. A computer network is a group of computers linked to each other that enables the computer to communicate with another computer and share their resources, data, and applications. While a mac is a pc, most people relate the term with systems that run the windows operating system. Application software is a program or a group of program designed for the enduser to perform a specific task in a computer. This type of computer performs the work immediately after it is given a problem.
The user directly interacts with the application programs for performing a task in a system. They have the ability to store numerous programs, but lack in. Peer to peer workgroups the computers are connected by a network, however, there is not a server present. Computer security is one of the most important issues in organizations which cannot afford any kind of data loss. Micro computer microcomputer is at the lowest end of the computer range in terms of speed and storage capacity. But digital computer takes is not introduction of computers. A computer needs both hardware and software in order to work. Software it is a collection of programmes written to bring the hardware of a computer system into operation. There are a lot of terms used to describe different types computers.
We do our work, entertain ourselves and find out what we need to know via computers. Computer networks a group of two or more computer systems linked together. According to purpose, computers are either general purpose or specific purpose. After completing this chapter you should understand.
A computer virus is one type of malware that inserts its virus code to multiply itself by altering the programs and applications. How it was originally created also defines whether the content of the pdf text, images, tables can be accessed or whether it is locked in an image of the page. Basic calculators, graphic calculators, scientific calculators, programmable calculators, and calculators used for accounting and other financial purposes. Explain different types of storage devices perfect. Ane overview of the major features and interactions of the hardware and software components of modern computer systems is also included. Computer hardware consists of electronic and mechanical elements of a computer. It consists of a large box called the system unit that contains most of the essential components. The fundamentals of computer systems design and organization are presented, and the conventional procedure for the xecution of computer programs is described. Definition a computer is a machine that can be programmed to manipulate symbols. While the term computer can apply to almost any device that has a microprocessor in it, most people think of a computer as a device that receives input from the user through a mouse or keyboard, processes it in some fashion and displays the result on a screen. Can adopt technology developed for larger operating system often individuals have sole use of computer and do not need advanced cpu utilization of protection features.
Computers differ based on their data processing abilities. Microprocessor types and specifications page 2 of 158 file. The 4004 processor was introduced on november 15, 1971, and originally ran at a clock speed of 108khz 108,000 cycles per second, or just over onetenth a megahertz. Read the following techspirited article to know more.
Different types of networks depending upon the geographical area covered by a network, it is classified as. Every computer has different hardware specifications, but there are some basic components that are common to all of them. Local area network is a group of computers connected to each other in a. Most of the beginners confused about types of computer applications and it is not easy to divide computer applications into any exact categories. A desktop computer that has a more powerful processor, additional memory and enhanced capabilities for performing a special group of task, such as 3d graphics or some game development. This article discusses various types of computer software applications. Most of these words imply the size, expected use or capability of the computer. It can quickly store and retrieve large amounts of data. Clientserver the computers are connected by a network, and there is a server present. With adobe acrobat dc, you can quickly export pdfs into other file formats and even edit text within the pdf. A language that corresponds directly to a specific machine.
Some of the most common viruses are, boot sector virus. File transfer protocol ftp is one of the oldest server types. Computing homework revision exercise computer systems unit computer structure int 2 write down d. Io devices keyboards, mice, display screens, small printers. Basically, languages can be divided into two categories according to how the computer understands them. With adobe acrobat dc, you can convert various file formats into a highquality pdf thats easy to share and looks great on any screen. Now this time we used that computer its digital computer. Here are some essential computer features for desktop and laptops to keep in mind when choosing a laptop or desktop computer for your small business. The computer gets infected through the replication of malicious code. It has to be driven by certain utility programmes called software which are stored in the computer system. It takes only few seconds for calculations that we take hours to complete.
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